Water and feed pump for hydrocarbon-engines.



II H. F. SHEPHERD.'

WATER AND FEED rPUMP FOR HYDROCARBON ENGINES. APPLICATION FILED AuG.I2. I9I4.

1,165,028. Patented Dec. 21, 1915.

I f u .MMM/ ATTORNEYS.

UNITED STATES PATENT OFFICE.

HAROLD F. SHEPHERD, OF GROVE CITY, PENNSYLVANIA, ASSIGNOR TO BESSAEMER GAS ENGINE COMPANY, F SYLVAN IA.

Specification of Letters Patent.

GROVE CITY, PENNSYLVANIA, A. CORPORATION OF PENN- WATER AND FEED PUMP FOR HYDROC-ARBON-ENGINES.

A Application medaugust 12, 1314; seriai'no. $56,352.

To all whom t may. concern Be it known that I, HAROLD a citizen of the United States, residing at Grove City, in the county of Mercer and State of Pennsylvania, have invented new and useful Improvements in Water and Feed Pumps for Hydrocarbon-Engines, of which the following is a specification.

' l This invention relates to w-ater and feed pumps forhydrocarbon engines and consists in certain improvements in the construction thereof as will be hereinafter fully described and pointed out in the'claims.

With some types of hydrocarbon engines, it is desirable to feed a certain amount of water with the fuel. The amount of Water necessary to feed varies with different fuels.

The object of thepresent invention 1 s to provide a pump in which the proportions of fuel and water may be varied so that the proportions of water` and fuel may be regu-- lated as desired. This is accomplished preferably'with the mechanism in which not only the proportions of water and fuel may l section on the line 3 3 in Fig 2.

l'marks the fuel pump barrel, 2 the water pump barrel, 3 the fuel pump rod and 4 lthe water .pump rod.` The fuel pump rod 3 is connected with the cross head 5 and the water pump rod 4 with a head 6. The heads 5 and 6 slide in guides 7 and 8 -arranged in the frame 9. The barrels 1 and 2 are preferably secured to thls same frame so that the parallel alinernent of the rods is maintained. A connecting rod or pitman 10 is connected with the cross head 5 in the usual manner and gives motion to the fuel pump rod 3. Ordinarily this would be connected directly to the fuel pump rod because the fuel chamber is subjected usually to much higher pressure than the water pnmp. A bearing projection ll'is arranged on the F. SHErnsmr- "l" headuifand a Similar projection 12 on the -head 6. The projection 11 has a bearing 13 and` theuprojection 12v a, bearing 14. The pins 15 and' '16 are placed in the bearings 13 and 1'4 respectively. These pins have flattened ends formed by milling off thepins forming two opposingl parallel surfaces.

Patented Dec. 21, w15.

This forms a small Shoulder between .the flat surface and the body of the pin and the shoulders at the opposite ends of thepins are` in alinement with the Surfaces of the projection 12. The lever18 is provided with the forked ends 19,` the forked ends ends afford a sliding connection lbetween the lever and the heads v5 and 6 and thepins beingv free -to 'rotate in theirv bearings form a pivotal connection so that the connection as a whole is a sliding and pivotalV connection.

The lever 18 ismounted on a pin 20 vpreferably between the rods. The'. pin 20 is eccentrically mounted on a carrier 21. The carrier 21 is journaled in a bearing 22 in the frame 9. A clamp bolt 23 is provided by means of whichv thecarrier 21 may be locked in any position. A handle 24eXtends from the carrier by means of which the carrier will swing so as to throw the pin to the adjusted position. desired and when adjusted the pin may be locked in the adjusted position by means of the bolt 23 operating on the carrier 21. Itwill be observed that as the pin 20..is swung toward'and from either the rod 3 or 4 that the fulcrum of the lever 18 is thus moved and consequently the lever is shortened with relation to one rod and lengthened with relation to the other rod.

In this way, the throw or travel of one rod relatively to the other may be varied as desired. At the same time if the travel of the fuel pump rod 3 is varied as under the influence of the governor, the travel of the rod 4 controlling the water pumpfis Similarly 1 varied so that while the quantities `may be varied the proportions remain constant. In this way the proportions of water and fuel may be adjusted so as to accommodatedifferent qualities of fuel and when 'once adjusted will take care of various adjustments in lthe `quantity of fuel maintaining with varying quantities a constant proportion. -What I claim .as new is 1. In a water and feed pump`for lhydrocarbonl engines, the combination of a fuel pumprod; a water pump rod; a lever connected to both rods; a fulcrum for the lever; and means for shifting the fulcrum to vary the relative throw of the lever at its connections with said rods whereby the propor` tions of fuel and water may be varied and the proportions maintained as the quantity varies. 4

2. In a water and feed pump for hydrocarbon engines, the'combination of a fuel pump rod; a water pump rod; a lever con-- nected to both rods; a fulcrum for the lever arranged between the rods; and means for shifting the fulcrum to vary the relative throw of the lever at its connections with the rods whereby the proportions of fuel and water may be varied and the proportions maintained as the quantity varies;

3. In a wate'and feed pump for hydrocarbon engines, the combination of a fuel pump rod; a water pump rod; a lever connected by sliding and pivotal connections to both rods; a fulcrum for the lever; and means for shifting the fulcrum tovary the relative throw of the lever at its connections with the rods whereby the proportions of fuel and water may be varied and the proportions maintained as the quantity varies.

4. In a water and feed pump for hydrocarbon engines, the combination of a fuel pump rod; a water pump rod; a lever connected bysliding and pivotal connections lto both rods; a fulcrumfor the lever arranged between the rods; and meansfor shifting the fulcrum to vary the relative throw' of the lever at its connections with the rods whereby the proportions of fuel and watermay-be varied and the proportions maintained as the quantity varies. p

5. In a water and feed pump for hydrocarbon engines, the combination of a fuel -pump, rod; a .water pump rod; a leverv connected to both rods; a fulcrum for the lever; and a carrier on which th'e-v fulcrum is mounted, said fulcrum being eccentric to the carrier so that the fulcrum may be shifted by swinging the carrier to vary the relative throw ofthe lever at its connections with said rods whereby the proportions of fuel andwater may be vvaried and the proporcarbon engines, the combination of a fuel.'

pump rod; a water pump rod; a lever connected to both rods; a fulcrum Yfor ,the lever arranged between. the rods; and. acarrier for the fulcrum, the fulcrum being eccentric to the carrier wherebv the fulcrum may be shifted by swinging the carrier.

7 In a water and feed pump for hydrocarbon engines, the combination of a fuel pump rod; a water pump rod; a lever connected to both rods; a fulcrum for the lever arranged betwen the rods; a'carrier for the fulcrum, the fulcrum being eccentric to the carrier whereby the fulcrum maybe shifted by swinging the carrier; and means for locking the carrier in adjustment.

8. In a water andfeed pump for hydrocarbon engines, the combination. of Ia fuel pump rod; a water pump rod; bearings mounted on said rods; pins in said bearings with flattened ends, the flattened ends forming shoulders on the pins; a lever having forked ends forming a sliding connecseo' tion ywith the flattened ends of the pins, said lever operating on the shoulders formed by vthe flattened ends of the pins for locking the pins in the bearings; and a fulcrum for the lever. v

9. In a water and feed pump for hydrocarbon engines, the combination of a fuel pump rod; a ,water pump rod; bearings mounted on said rods; pins in said bearings the flattened ends of the pins for locking-- the pins in the bearings; a fulcrum for the '90 with flattened ends, the flattened ends form- -ingshoulders on the pins; a lever having lever; and means for shifting the fulcrum.y

to vary'the throw of .the leverat points operating on said pins'.

In testimony whereof Ihav-e hereunto-set my hand in the presence of two subscribing e l witnesses. v HAROLD F. SHEPHERD.

YWitnesses: l'

WM. J; S'LoAN, E. J. FITHIAN.

ioo 

